Building-block.



PATENTED OUT; 24, 1. 905.

G. L. PEABODY.

BUILDING BLOCK.

APPLICATION FILED MAR. 14. 1904.

GEORGE L. PEABODY, OF PITTSBURG, PENNSYLVANIA.

BUILDING-BLOCK- Specification of Letters Patent.

Patented Oct. 24, l 905.

Application filed March 14, 1904. Serial No. 197,930.

To all whom it may concern:

Be it known that I, GEORGE L. PEABODY, a citizen of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Building-Blocks, of which the following is a specification, reference being had therein to the accompanying drawings, forming part of this specification, in which Figurelis a view in elevation of a number of my improved building-blocks, showing their arrangement when incorporated in a building to provide a flue. Fig. 2 is a plan view. Figs. 3 and 4 are isometric views of the block detached.

My invention refers to improvements in concrete building-blocks; and it consists of a block especially designed for incorporation in a wall, so as to provide a continuous internal flue, while being also capable of engagement with the other adjacent blocks to form a bond therewith by overlapping engagement at each side. Heretofore in making building-blocks of this character, it has been the practice to make the blocks of a size and shape to form the Walls of one or more flues only, the blocks being all of the same width and built upon each other with all of their sides in alinement. By this construction the flue is necessarily composed of a continuous column of similar flue-blocks, the column having a uniform width with straight sides. The adjacent walls of the building are then built against the flue-column at each side, and no bonding overlapping engagement of the blocks is possible, so that tying devices or other means must be employed to secure a connected wall structure. My invention obviates these objections and provides a block which may be built in with the other blocks in the manner of ordinary brickwork, so as 10 provideacontinuous alternate overlapping disposition of the blocks, breaking joint at each course, and firmly uniting the flue-blocks with the ordinary wall-blocks, while providing a continuous flue or flues.

Referring now to the drawings, 2 represents the four sides of the block which form the surrounding sides of the flue-cavity 3, preferably rectangular in form and extending through the block from top to bottom.

4 represents the wall extensions at one side of the flue-walls, terminating in a cross-bar 5,

with an intervening air-space 6, although the air-space may be omitted, if desired, and the wall extension made solid. The entire width of the wall extension from front to back is proportionally less than the width across the flue portion from front to back of the walls 2, corresponding to the normal width of the building-wall and of the wider chimney, respectively.

The entire block is integral, and thus constitutes a rectangular L-shaped piece of concrete the top and bottom of which are level and parallel with each other, the block being perforated from top to bottom by the flueopening 3 and air-space 6.

With either smooth or rough faced blocks they may all be made uniform and laid with the wall portion extending alternately to the right and left and incorporated with the usual wall structure, as described.

Two or more flue-openings 3 may be provided, as in Fig. 4:, by merely extending the widened chimney portion for the necessary distance at one end, as will be readily understood.

The advantage of my invention will be read ily appreciated by all users of this class of material. It is very simply and cheaplymade and easy to lay, while combining well and strongly with the building-walls.

The chimney may project either outwardly or inwardly from the main wall, as desired, or according to the character of the building.

What I claim 1s- 1. As an improved article of manufacture, the herein-described building-block of concrete having a rectangular chimney portion provided with a rectangular opening therethrough, and a lateral extension formed by continuing the wall of the block at one side, the other side being formed by an offset and a lateral extension from the chimney portion and of less width than said portion, said extension having an opening therethrough formed by an end wall, and an intervening partition extending from one face of the chimney-opening to a point beyond the parallel outer wall forming the offset of said por tion, substantially as set forth.

2. As an improved article of manufacture, an L-shaped building-block of concrete having a main chimney portion with a rectangular opening therethrough, and an integral lateral extension forming a flush continuation ing and extending on both sides of the line of said set-ofl' portion, substantially as set forth.

In testimony whereof I aiiix my signature in presence of two Witnesses.

GEORGE L. PEABODY.

Witnesses:

Ms. J. MCAFEE, O. M. CLARKE. 

